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News about Mauna Loa.

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How to stay informed about Hawaiian volcanoes

How to stay informed about Hawaiian volcanoes

Information about how to stay informed about Hawaiian volcanoes.

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Volcano Awareness Month

Volcano Awareness Month

January 2019 is Hawaiʻi Island's 10th annual Volcano Awareness Month.

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Volcano Watch - Why do some Hawaii earthquakes occur so far offshore?

Volcano Watch - Why do some Hawaii earthquakes occur so far offshore?

Earthquakes in Hawaii are intimately related to the volcanoes. In addition to helping scientists track moving magma, sometimes they happen simply...

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Update on January 2019 Volcano Awareness Month Presentations

Update on January 2019 Volcano Awareness Month Presentations

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present public lectures as planned.

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Update on January 2019 Volcano Awareness Month Presentations

Update on January 2019 Volcano Awareness Month Presentations

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present lectures as planned. 

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We continue to monitor and report on volcanic activity during any lapse in appropriations.

We continue to monitor and report on volcanic activity during any lapse in appropriations.

During the current federal government shutdown, the Volcano Hazard Program and all five U.S. Volcano Observatories will continue to issue updates...

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Which U.S. volcanoes pose a threat?

Which U.S. volcanoes pose a threat?

USGS Volcanic Threat Assessment updates the 2005 rankings.

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Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people...

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Volcano Watch — Explosive eruptions at the summit of Mauna Loa: When did they occur?

Volcano Watch — Explosive eruptions at the summit of Mauna Loa: When did they occur?

Three deposits from explosive eruptions at the summit of Mauna Loa are located west, northwest, and east of Moku‘āweoweo, the volcano's summit caldera...

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Volcano Watch — Disaster strikes Ka‘ū in 1868: The rest of the story

Volcano Watch — Disaster strikes Ka‘ū in 1868: The rest of the story

Already reeling from a destructive earthquake and deadly tsunami and mud flow on April 2, 1868, Ka‘ū residents on the Island of Hawai‘i hoped for a...

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Report provides volcanological context for 19th century artwork.

Report provides volcanological context for 19th century artwork.

In this new USGS Open-File Report, artwork is matched with the approximate date and volcanological context of the scene, showing eruptions at Kīlauea...

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Photo and Video Chronology - Mauna Loa - March 16, 2018

Photo and Video Chronology - Mauna Loa - March 16, 2018

On March 14, HVO's webcam [MLcam] captured this image of a double rainbow.

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